Home / 2,254.89-3,379.09-1,278.93

Finding the Fourth Proportional to 2,254.89, 3,379.09 and 1,278.93

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Solution

The fourth proportional to 2,254.89, 3,379.09 and 1,278.93 is: 1,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.89 : 3,379.09 = 1,278.93 : x
  2. Step 2: Convert to fraction form
    2,254.89/3,379.09 = 1,278.93/x
  3. Step 3: Cross multiply
    2,254.89x = 3,379.09 × 1,278.93
  4. Step 4: Simplify right side
    2,254.89x = 4,321,619.57
  5. Step 5: Solve for x
    x = 4,321,619.57/2,254.89
  6. Step 6: Final answer
    x = 1,916.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.